IMECH-IR  > 力学所知识产出(1956-2008)
Determination of the Maximum Effective Burning Velocity of Dust-Air Mixtures in Constant Volume Combustion
Pu Y K; Jia F; Wang SF(王双峰); Skjold T; Pu, YK (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China.
Source PublicationJOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
2007
Volume20Issue:4-6Pages:462-469
ISSN0950-4230
AbstractThe reactivity of a combustible dust cloud is traditionally characterized by the so-called K-St value, defined as the maximum rate of pressure rise measured in constant volume explosion vessels, multiplied with the cube root of the vessel volume. The present paper explores the use of an alternative parameter, called the maximum effective burning velocity (u(eff,max)), which also is derived from pressure-time histories obtained in constant volume explosion experiments. The proposed parameter describes the reactivity of fuel-air mixtures as a function of the dispersion-induced turbulence intensity. Procedures for estimating u(eff,max) from tests in both spherical and cylindrical explosion vessels are outlined, and examples of calculated values for various fuel-air mixtures in closed vessels of different sizes and shapes are presented. Tested fuels include a mixture of 7.5% methane in air, and suspensions of 500 g/m(3) cornstarch in air and 500 g/m(3) coal dust in air. Three different test vessels have been used: a 20-1 spherical vessel and two cylindrical vessels, 7 and 221. The results show that the estimated maximum effective burning velocities are less apparatus dependent than the corresponding K-St values. (C) 2007 Elsevier Ltd. All rights reserved.
KeywordDust Explosion Constant Volume Combustion Maximum Effective Burning Velocity
DOI10.1016/j.jlp.2007.04.036
Indexed BySCI
Language英语
WOS IDWOS:000250636900022
WOS KeywordSPHERICAL VESSELS ; EXPLOSIONS ; TURBULENCE
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58447
Collection力学所知识产出(1956-2008)
Corresponding AuthorPu, YK (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Pu Y K,Jia F,Wang SF,et al. Determination of the Maximum Effective Burning Velocity of Dust-Air Mixtures in Constant Volume Combustion[J]. JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES,2007,20(4-6):462-469.
APA Pu Y K,Jia F,王双峰,Skjold T,&Pu, YK .(2007).Determination of the Maximum Effective Burning Velocity of Dust-Air Mixtures in Constant Volume Combustion.JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES,20(4-6),462-469.
MLA Pu Y K,et al."Determination of the Maximum Effective Burning Velocity of Dust-Air Mixtures in Constant Volume Combustion".JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES 20.4-6(2007):462-469.
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